Author/Authors :
Stebounova، نويسنده , , Larissa V. and Romanyuk، نويسنده , , Yaroslav E. and Dengel، نويسنده , , Radu-Gabriel and Leone، نويسنده , , Stephen R.، نويسنده ,
Abstract :
Optical contrast from InN nanodots grown on nitrided sapphire is investigated using apertureless near-field scanning optical microscopy at two different visible wavelengths, 633 nm and 532 nm. The dependence of the near-field signal on the size of the dots is described using a coupled dipole model expanded to four dipoles. The near-field signal from InN dots with a height of <1 nm is detected due to dipole–dipole coupling.
